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TO ALL WI-IOMIT MAY CONCERN;

Be it known that I, L. F. MNGER, of Rochester, in the county of Monroe,and State of New York, have' invented certain new anduseful Improvementsin Lathes, and Planing and Shaping-Engines; and I do hereby declare thefollowing to be a full, clear, and exact description of the same,reference being had to the accompanying drawings, making a partei' thisspecification, in whichf- Figure l represents a front view of themachine.

Figure 2 represents'a vertical cross-section taken at the red line x a:of ig. 1.

Figure 3 represents a longitudinal vertical section-through the mandreland its connected parts.

Similar letters of reference where they occur in the separate figuresdenote like parts in all of the drawings.

My invention relates, iirst, to the placing of the lathe-centresvertically or nearly so over the front of the lathe, or over the ways atthe front of the lathe, upon lwhich the slide-rest is supported andmoves, so as to more,

readily adapt the machine to turning, planing, o1' shaping, as the casemay he; second, the combination of the centring-rod with the mandrel andits adjustable bearings, third, in combination with a-planing-tool,having an adjustable motion from the lface-plate of the lathe,.aslide-rest, that has a vertical, horizontal, and swivelling motion, tobring any article'thereon or therein up to thetool, in any desiredright-angled or-oblique'lines.

To enable others skilled in the art to make and use my invention, I willproceed toi describe the same with reference to the drawings. l l

The bed A of the lathe may be supported on legs B B, and in or on thisbed are formed the ways, upon which the tail-block, tool-holder, andslide-rest may'mnve, andbe guided and adjust-ed. Upon one end of the bedA is placed a metallic frame or arms, C, which inclinevover towards thefront of the lathe, and in these arms the mandrel D is supportedand'turns. On the front side of the bed A are formed the Ways a b, onwhich I the slide-rest E is movedpas will be explained. The centre ,ofthe mandrel is vertical or nearly so over these ways, so that theslide-rest projects considerably fromthe side of the lathe-bed, as shownin iig. 2A. On the mandrel are the usual pulleys, 1 2 3, over one ofwhich the endless belt or 'band that drives it may pass, The outerend'of the mandrel has upon -it a gear-wheel, F, that takes into andturns an intermediate, G, and this intermediate gear drives a largergear, H, on the end of the screw-shaft I, which works through a. nut, c,in or on the slide-rest, and thus moves the slide-rest E. The screwworks in long recess or groove d in the bed, so

as to be entirely protected therein. On the horizontally-projectingportion or table F ofthe slide-rest F therev is placed a tool-slide,composed of two pieces, J' K, which have movements or adjustmentstogether and independent of each other, asffollow's: A clamping-screw,e, and thumb-nut, f, hold the tool-slide to theslide-rest` F, and thetool-slidecan be turned around thisscrew as a centre to give it anoblique position to the right or lett in relation to the mandrel, andthe edge y ofthe table F may be marked oil` into divisions, lines, ormarks,

by which the tool-slide may be definitely set. A dove-tail groove, z, ismade inthe upper portion J ofthe toolslidc, and a dove-tailed tongue,t', on the under portionvK, so that said upper portion may be movedlaterally on the under portion by means of a screw-rod, 4, on said upperpart, working through a nut, 5, in the under p0r' tion, the serew-rodbeing turned by a cranl,j. The tool-slidev has thus three adjustments,viz, vertical, hori# zontal i'n lateral lines, and horizontal in acircular direction around the screw e, and it has also its general feedor traverse by means of the screw-rod I. A vertical screw-rod, c, with acrank, Z, upon its lower end, passes' through a portion, m, of thetool-slidc, and through a nut, n, in the slide-rest, and the two partsare fitted together by dove-tailed ways, so that by means of thescrew-rod lc the tool-slide may be raised or lowered ver` tically atpleasure. In the top of the tool-slide Jthere are undercut grooves, o0,' in which the tool or any article to be worked withor upon may beplaced and secured. The mandrel D is hollow, and through' it passes thecentring-rod p, which has its supports at r r, one at each end of themandrel; and these bearings t* are boredv out after they arc put in themandrel, so as to be perfectly centred in the mandrel, the boring lbeingdone by revolving the mandrel in its bearings in the latheA The mandrelis'bushed in its hearings by the wedged or inclined bushes s s, one inYeach arm, and at the geared end of the' mandrel there is a screw-nut orsleeve, t, which works upon n screw-thread cut 'around the bush at thatend, so that, by turning said nut or sleeve, any and all slack motion inthe mandrel endwise can betaken up, and when the lathey becomes worn byuse, the bearings and bushes may be renewed, and the lathe-work as -trueas when first made. The above construction of mandrel and centring-rodmakes the lathe capable of doing the most accurate worlc', and of thevery lincst character, and adapts it to turning, planing, shaping,milling, and other work usual inlitting up accurate machinery. I haverepresented the machine in the drawings as fitted up for planing, but byrernoying the planing-tool and its support and driving-devices, andslipping on to the same Ways the ordinary lathe tail-block, turning ormilling can be done, or other lathe-Work. A groove, u, is cut on the topof the bed of the lathe, in which a tonguc,1f. on the under side of theblock L, fits, and a clamping-scre\\,w, whose head, 9;, takes under thcshoulders ol' said groove, and then passes up through said blocli L,holds the block in any adjusted` position by turning the thumbnut y.Transversely of the block L or of the lathe there operates a tool-stock,M, to which motioncan he given from the face-plate N of the lathe, asfollows: The slots z, in the face-plate, are cut through to theperimeter of the face-plate, and a wrist-pin, O, is secured in one ofsaid slots, and at such distance from the centre of the face-plate aswill give to'the tool the proper traversing motion. To this wrist.O isconnected oncend of a pitman, l?, the other end thereof being attachedto a wrist, Q, on the sliding-tool stock or holder M, and thus, when themandrel is revolrechthc tool-holder receives the reciprocating motion.In the cnrl oftheftool-sitock M there is arranged a tool-holder, Q',which is susceptible of removal, replacement, and of adjustment, and thctool R therein traverses over what I have termed the toclslidc, butwhich in this arrangement and use of the machine becomes a bed orholder, as it also does when the machine is used for milling, themilling-tool being on the mandrel, and the article to be milled uponthis bed or holder, and placed at any suitable angle with regard totheaxis of the mandrel. Y

Having thus fully described my invention, what I claim therein as new,and desire to secure by Letters Patent, is i 'y In combination with thelathe-centres, placed yertically or nearly so over the front of thelathe, the ways a en said front of the lathe, for the slide-rest to moveon, for the purpose of adapting the parts to the different operations,as herein described and represented. l

I also claim the combination of the centring-rod with the mandrel andits adjustable bearings, substantially as described.

I also claim, in combination with a planing or chasing-tool, thatreceives motion from the face-plate or mandrel of the lathe, aslide-rest or holder, that has a vertical, horizontal, and swivellingmotion with'rcgard to said tool, as and for the purpose substantiallyas'described. i

L. F. MUNGER.

Witnesses:

A. K. HANKS, G. B. HAYES.

